Browse Envelope Subtopics

Insulation

Researchers monitor temperature and moisture in a house for three winters to see whether 12 inches of dense-blown cellulose would work as well as the same thickness of medium-density open-cell spray foam.

Chasing energy rebates takes the focus off solving problems and puts it on getting as much rebate with as little out of pocket as possible, resulting in small jobs and mediocre performance improvement.

Air leaks through the building shell can have a significant effect on a home’s durability, energy use, and indoor air quality. Myron Ferguson explains how drywall can be an important part of the air barrier of an enclosure.